作者chuo11 (草之摆)
看板trans_math
标题[考古] 95年NCKU微积分第9题
时间Sat Jul 4 18:43:00 2009
9.
Fine the area of the region Ω bounded by the curves
x^2-4xy+4y^2-2x-y-1=0 and y=2/5
我算2遍337/48
王博32/15
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※ 发信站: 批踢踢实业坊(ptt.cc)
◆ From: 122.125.55.252
1F：推 Helios:我也算32/15啊122.117.154.108 07/04 18:46
2F：推 kan81314:32/15 正解122.116.221.134 07/04 20:08
3F：→ chuo11:请问x^2-4xy+4y^2-2x-y-1=0是上凹还下凹 122.125.52.33 07/04 20:20
4F：→ chuo11:我好像看成下凹\ 122.125.52.33 07/04 20:20
5F：推 SDUM:把图画出来，是上凹(╯≧□≦)f〒~叭 218.175.73.88 07/05 00:06
6F：→ target8917:我连图长什麽样子都不知道@_@220.136.108.167 07/05 00:30
7F：推 SDUM:台联大95年也出个类似题(填充第四) 218.175.73.88 07/05 00:38
9F：推 SDUM:必杀技 Jacobian ( ￣ c￣)y▂ξ 218.175.73.88 07/05 00:42